Soil Bearing Capacity Calculator
Calculate ultimate and safe soil bearing capacity using Terzaghi method for shallow foundations.
Bearing Capacity
Terzaghi Bearing Capacity Formula qu = c·Nc + γ·Df·Nq + 0.5·γ·B·Nγ
Where c = cohesion (kPa), γ = unit weight (kN/m³), Df = foundation depth (m), B = foundation width (m), and Nc, Nq, Nγ are bearing capacity factors.
Safe Bearing Capacity qs = qu / FS — where the factor of safety FS = 3.0 is standard practice for foundations.
Foundation Types Strip, square, and circular foundations have different shape correction factors applied to the formula.